Abandoned aircraft Aborted Takeoff Air to Ground Collision Aircraft Collisions on the Ground Aircraft Ground Accident Animal Strike Antenna Strike Battery Fire/Overheat Bird Strike Blade Flapping Brownout Cargo Event Cockpit air bags Collision with Ground/Water Accidents in which all flight crew eject or parachute An unplanned event that occurs before liftoff that interrupts a planned flight. This event is to be used for aborted takeoffs where no other event applies or in conjunction with other materiel failure events. Aircraft in the air collides with or strikes aircraft on the ground. Accidents in which two or more aircraft collide on the ground. None of the aircraft can be in flight. (used in addition to multiple aircraft event). Injury/occupational illness or property damage involving an Army aircraft in which no intent or flight exists and the engines are in operation. UAS not applicable During takeoff or landing, an animal is struck by any part of the aircraft. Aircraft damage caused by contact with an antenna. A fire in the battery compartment or overheated battery, usually resulting in electrical failure. Accidents in which any part of the aircraft collides with a bird while in flight. Damage resulting from wind or rotor wash from other aircraft that causes the main rotor blades to flap to the extent that damage occurs. Loss of visual reference to the ground or horizon caused by rotor wash swirling dust around the aircraft. Injury or property damage resulting from cargo handling errors/equipment failure; intentional or unintentional jettisoning of cargo hook load. Activation/deployment of the cockpit airbags either intentional or unintentional. Accidents in which the aircraft strikes the ground or water unintentionally. Includes crashing into a mountain under IFR, IMC, or
night; inadvertent flying into the ground or water, such as making a gun run and failing to pull up; low level flight resulting in striking ground or water. Contractor Aircraft Accident Ditching Dynamic Rollover Engine Failure Engine MAST/ XMSN overtorque/overload Engine Overspeed/Overtemp Equipment Loss or Dropped Object Excessive Yaw/Spin External Stores Event Fast rope An aircraft accident that occurs as a result of a government contractor's operation in which there is damage to Army property or injury to Army personnel. Included is non delivered equipment for which the Army has assumed responsibility. Landing in a controlled attitude in water (Does not include creeks, streams, etc., or those landings to ships or barges in which the aircraft crashes in the water). Accident in which the main rotor blades strike the terrain as a result of exceeding the lateral CG limits, while the aircraft structure is still intact. Engine fails to develop sufficient power to maintain flight or internal failure of power plant. Excludes fuel starvation or fuel exhaustion and FOD. Engines MAST/XMSN that have been subjected to torque loads beyond power limits specified, or engine loses rpm because of overload of aircraft for density altitude. Engine RPM or temperature exceeding the allowable limits for continued Accidents in which some part of the aircraft or attached equipment is lost in flight, other than cargo and external stores. May occur on the ground or in the air (helicopter only). A maneuver where the aircraft yaws excessively or spins when power is added without adequate anti torque input, or a loss of anti torque control occurs. Injury or property damage resulting from external stores handling errors or equipment failures. Property damage or personnel injury occurring during fast rope Fire and/or Explosion in the Air Same as on the ground except damage must be after lift off and before touchdown.
Fire and/or Explosion on the Ground Flight Related Accident Forced Landing (FL) Foreign object damage (FOD) Fratricide (AKA Friendly Fire) Fuel Exhaustion Fuel Starvation Ground Loop/Swerve Hard Landing Helocasting Human Factor Event Icing Accidents that are initiated by a fire or explosion. The damage incurred must be prior to lift off on takeoff and/or after touchdown. Damage to property or injury/occupational illness to personnel without damage to aircraft. UAS not applicable A landing caused by failure or malfunction of engines, systems, or components that makes continued flight impossible. This event is to be used in conjunction with other materiel failure/malfunction events. Accident in which FOD is the only damaged incurred, excludes turbine engine FOD. Persons killed, wounded, or equipment damage, in military action, mistakenly or accidentally, by friendly forces actively engaged with the enemy, who are directing fire at hostile force or what is thought to be hostile force. Power loss resulting from using all usable fuel aboard an aircraft. The result of fuel ceasing to flow to the power plant while fuel is still on board the aircraft. Example: The pilot fails to switch tanks when one runs dry or blockage of fuel lines occurs because of contamination. When aircraft damage is incurred because absolute directional control is not maintained (intentional or unintentional). Includes F/W ground loops; R/W auto rotational landings; R/W running landings due to antitorque failures; aircraft running off side of runway. Damage incurred due to excessive sink rate on landing touchdown. Includes autorotation landings when skids are damaged; main rotor blade flexing into tail boom; tire blowing on touchdown; landing gear driven into fuselage; fuselage, wing, etc., buckling. Note: The landing area must be suitable for a probable successful landing. Property damage or personnel injury occurring during helocasting A psychological, physiological, or pathological condition that occurs to personnel when intent to fly exists and results in interference with a crewmember's duties during aircraft operations or mission being delayed, diverted, or aborted. Accidents/incidents as a result of icing conditions other than structural icing captured in structural icing
Inflight Breakup Inflight Breakup Mast Bumping Instrument Meteorological Condition (IMC) Landing Gear Collapse/ Retraction Laser Induced/Related Lightning Strike Maintenance operational check (MOC) Mast Bumping Midair Collision Misappropriated Aircraft Missing Aircraft Multiple Aircraft Event Object Strike Accidents in which aircraft begins to break up in flight. In these accidents, any type of landing is not expected. Includes loss of main rotor blades; loss of wing. Accidents in which the main rotor separates as result of mast bumping. Aircraft must be in IMC conditions when the accident/emergency occurs. During takeoff, landing, or taxi, the gear collapses for any reason or the crew inadvertently retracts or retracts too soon on takeoff (does not include gear shearing due too hard landing). Property damage or personnel injury resulting from laser operations created. May be used in conjunction with other events Damage to aircraft/injury to occupant because of lightning strike(s). Accidents that occur during MOC while the engine(s) is/are in operation and/or rotors turning. Damage resulting from contact between the main rotor and mast but not resulting in rotor separation. Those accidents in which more than one aircraft collide in flight. Hover is considered in flight. An aircraft accident that occurs during the operation of an Army aircraft that has been misappropriated, regardless of aircrew designation. Intent for flight must exist. Used when an aircraft does not return from a flight and is presumed to have crashed. Injury or property damage resulting from the interactions of two or more aircraft. To qualify as a multiple aircraft event, two or more aircraft must be involved. An inoperative aircraft (engine not running) struck by an operating (engine running) aircraft does not qualify in this context. Aircraft/aircraft component struck objects other than ground, trees, or objects included in other events.
Other Collisions Overshoot or Overrun Overstress Parachute Deployment Personnel Handling Event Precautionary Landing (PL) Rappelling Refueling Accident Rescue Operations Rotor Overspeed Rotor/Prop Wash Seatbelt/Restraint Harness Strike Single engine landing Spike Knock Spin or Stall Structural Icing Accidents when an aircraft collides with something not accounted for by other type events listed. Landing in which the aircraft runs off the end of the runway because of touchdown speed, too short runway, touching down too long, or failure of brakes. Stress damage to aircraft as a result of operating aircraft outside the design limitations. Accidents involving paradrop operations inside or still attached to the aircraft. Injury or property damage accidents/incidents involving personnel handling. A landing resulting from unplanned events occurring while the aircraft is in flight that make further flight inadvisable. This event is to be used for PLs where no other event applies or in conjunction with other materiel failure events. Property damage or personnel injury occurring during rappelling Damage incurred during refueling operations on the ground or inflight. Property damage or personnel injury occurring during rescue Main rotor RPM exceeding the allowable limits for continued flight. Property damage or personnel injury resulting from rotor/prop wash (does not include damage incurred by Blade Flapping). Damage caused by unsecured seatbelt/restraint harness. An unplanned single engine landing of a multi engine aircraft/uas Damage occurred when the transmission spike contacts the striker plate with sufficient force to cause damage. Fixed wing aircraft only type accidents resulting in stalling and/or spinning due of loss of airspeed, or excessive angle of attack. Formation of ice on aircraft structures to include the rotor systems. Does not include carburetor, induction, or pitot static system icing.
Stump Strike Tail Boom Strike Tiedown Strike Transmission Failure Tree Strike Turbine Engine FOD Uncommanded control input Undershoot Unmanned aircraft. Vertical Fin Strike Weapons Related Wheels Up Landing Whiteout Wire Strike Aircraft contacts stump during routine landing. Main rotor contacts tail boom on the ground due to wind conditions. Excludes hard landings and damage caused by rotor wash. Damage to the aircraft caused by main rotor tiedown device attached to main rotor during engine start. Internal failure of a main transmission. Accidents as a result of aircraft striking vegetation during any phase of flight. Internal or external FOD damage confined to aircraft turbine engines only. An uncommanded aircraft/uas pitch, yaw, or roll motion (regardless of amount) that is not induced by the crew or adverse environmental conditions. When an approach is being made to a prepared area of field and the aircraft touches down short of the suitable landing surface. (Does not include striking wires, trees, etc., on approach except an aircraft striking an airport boundary fence.) Have a Q designator, and may be flown or operated by an air vehicle operator (AO) or external operator (EO). Damage caused by the tail rotor blades coming in contract with the vertical fin on single rotor helicopters. Accidents involving weapons that result in property damage or injury to personnel. Aircraft equipped with retractable landing gear in the wells. Includes intentional gear up landings; crew forgetting to lower gear; gear does not extend when gear handle placed down. Loss of visual reference to the ground or horizon caused by rotor wash swirling snow/dust around the aircraft. Accidents as a result of the aircraft striking any kind of wires during any phase of flight.